Cita APA (7a ed.)

Wallbank, T. W., & Walbank , T. W. .. . . . a. ]. (1978). Civilization past and present: 1850; to the present (5th ed.). Scott, Foresman.

Cita Chicago Style (17a ed.)

Wallbank, T. Walter, y T. Walter .....[et al ] Walbank. Civilization Past and Present: 1850; to the Present. 5th ed. Glewview, Illi.: Scott, Foresman, 1978.

Cita MLA (9a ed.)

Wallbank, T. Walter, y T. Walter .....[et al ] Walbank. Civilization Past and Present: 1850; to the Present. 5th ed. Scott, Foresman, 1978.